I-39/90 Expansion Project

Illinois state line to Madison, Dane and Rock counties

Latest News

Weekly Construction Update: June 1-5

Posted: May 28, 2020



All lane restrictions, road and ramp closures, and work operations are weather dependent and subject to change.

Two lanes remain open to traffic on I-39/90 (in each direction) during daytime hours and weekends. Access remains open to area businesses in the project area. Please continue to patronize the area businesses!

NOTE: Next week Monday through Friday, nightly single lane closures (8 p.m. – 5 a.m.) are planned on I-39/90 northbound and southbound in the following work zones, unless noted otherwise. Minor delays may occur during these lane closures.

NOTE: Only CLOSED roads are listed below; if a road is not listed, the road is OPEN.


I-39/90 and US 12/18 (Beltline) interchange area
Femrite Drive underpass
Anticipated construction completion: Fall 2021

  • I-39/90 traffic located on existing lanes through the Beltline interchange (Exit 142 A-B).
  • One lane CLOSED on westbound US 12/18 from Millpond Road to the I-39/90 southbound loop ramp.
    • The lane closure will continue throughout the 2020 construction season.
  • I-39/90 and Beltline interchange construction operations:
    • Work continues on the new northbound I-39/90 bridge over Femrite Drive with bridge decking work continuing and a concrete deck pour planned for Tuesday (June 2) at 3:30 a.m.
    • Construction to continue on the new northbound I-39/90 bridge over the northbound I-39/90 ramp to westbound US 12/18.
    • Construction to continue on the new I-39/90 northbound bridge over westbound US 12/18.
    • Retaining wall work continues at the new bridge locations within the Beltline interchange.
    • Grading operations to continue within the core of the Beltline interchange.
    • Nighttime grading operations for the new I-39/90 norhbound lanes to begin near Femrite Drive from 7 p.m. to 7 a.m.

County AB to US 12/18 (Beltline) interchange
Siggelkow Road underpass
Anticipated construction completion: November 2020

  •  All I-39/90 traffic shifted onto the northbound side between the US 12/18 (Beltline) interchange and County AB near McFarland.
  • I-39/90 construction activities include:
    • Apply polymer overlay on bridge of County MN.
    • Trim base course in preparation for concrete paving for new I-39/90 southbound lanes.
    • Continue paving operations.
    • Continue installing erosion control devices.
    • Installation of median sign structure bases.
    • Finish permanent pavement markings along portions of I-39/90 completed last fall.
    • Installation of curb heads for the I-39/90 northbound bridge structures.


Kennedy Road to Rock River bridges, Janesville to Edgerton
Townline Road, County M and Newville Road underpasses
Anticipated construction completion: November 2020

  • All I-39/90 traffic shifted onto the southbound side from the Rock River bridges to Kennedy Road, north of the WIS 26 interchange (Exit 171A).
    • Access remains OPEN to the Janesville rest area
  • Newville Road, under I-39/90, is CLOSED starting Monday (June 1) until early July 2020.
    • Alternate local routes are required.
  • I-39/90 construction operations between Janesville and Edgerton.
    • Grading operations continue for the new northbound Interstate lanes.
    • Installation of fiber into the newly completed conduit.
    • Pouring of the new I-39/90 northbound bridge decks over Townline Road, County M, Wisconsin and Southern Railroad, and Newville Road.
    • Mainline paving operations in preparation for traffic switch.
    • Restoration work and installation of right of way fence.

WIS 26/Milton Avenue and US 14/Humes Road interchanges, Janesville
Anticipated construction completion: Fall 2021

  • All I-39/90 traffic shifted onto the southbound side from Kennedy Road to the US 14 interchange (Exit 171B).
  • LONG-TERM CLOSURES: The following ramps are CLOSED until late July 2020. Alternate routes will be required.
    • I-39/90 northbound ramp to WIS 26/Milton Avenue (Exit 171A)
      Beloit to Janesville/Milton/Fort Atkinson

      • Drivers with destinations in Janesville, or traveling to Milton/Fort Atkinson, must use Exit 171B.
      • The WIS 11/Racine Street interchange (Exit 175) will also remain open.
    • US 14/Humes Road ramp to I-39/90 northbound
      Janesville to Madison

      • The WIS 26 ramp to the northbound Interstate will remain OPEN.
    • Download the Janesville ramp closure map.
  • I-39/90 construction activities at the WIS 26/Milton Avenue and US 14 interchanges.
    • Crews will continue grading work and stone placement on the entire northbound stretch of I-39/90 next week.
    • Slope restoration in areas where grading is complete.
    • Trimming and mainline paving to continue south of Ryan Road.
    • Storm sewer installation will continue for I-39/90 northbound.
    • Crews to continue installation of temporary traffic signals for the I-39/90 northbound and WIS 26/Milton Avenue interchange ramps.
    • Continue storm sewer installation for I-39/90 northbound.
    • Installation of modular block retaining wall under the pedestrian overpass.
    • Paving of the I-39/90 northbound barrier wall for the collector-distributor lane system separation.

South of US 14/Humes Road interchange to Hart Road bridge over I-39/90, Janesville to Beloit
Anticipated construction completion: Late May 2020

  • This project is complete. Please be attentive for crews completing minor finishing and restoration items on I-39/90 and local roadways.
  • I-39/90 construction activities between Beloit and Janesville.
    • Restoration work will continue on Palmer Drive, Ruger Avenue, East Milwaukee Street, Mt Zion Avenue and the Ice Age trail near Spring Brook.


I-39/90 expansion and I-43 reconstruction (Illinois state line to Hart Road; County X/Hart Road to Freeman Parkway), Beloit
Anticipated construction completion: Fall 2021

  • All I-39/90 traffic is shifted onto the existing southbound lanes from Colley Road to Hart Road.
    • Access remains OPEN to the Beloit rest area and local businesses.
  • I-43 traffic will be shifted onto the new WIS 81 lanes on Wednesday (June 3).
    • One lane OPEN in each direction on I-43.
    • Be alert for construction equipment as bridge construction is taking place within the interchange area.
  • Loop ramps are CLOSED at the I-39/90 and I-43/WIS 81 interchange in Beloit.
    • I-39/90 traffic must use Exit 185 to access I-43 or WIS 81/Milwaukee Road (view the navigation map).
    • Ramps and crossroad traffic are controlled by traffic signals.
    • Drivers on I-43 should be attentive for reduced speeds heading into Beloit and the traffic switch on Wednesday.
  • Colley Road under I-39/90, near Beloit, is CLOSED until mid-June 2020.
    • Alternate local routes are required.
  • I-39/90 and I-43 construction operations near Beloit:
    • Structure construction for the new flyover bridges at the I-39/90 and I-43 interchange will continue.
    • I-39/90 northbound lanes reconstruction continues from Colley Road to Hart Road.
    • Paving to begin for the new I-39/90 northbound and southbound lanes.